Like all final books in a beloved series there are lots of revelations, storylines are tied up, and the ending is a controversial one. It seems the end of the world brought about by the Freakangels was not the end of the world... entirely, and the Freakangels decide to do something equally massive with their powers but this time for constructive purposes not destructive. And some of the Freakangels get drunk and hook up.
It's hard to talk about the aspects of the plot as it'd just give away too much of the content of the book but suffice it to say that if you've enjoyed the series thus far, Warren Ellis' ending does a fine job of finishing it satisfactorily and without betraying the characters or the story. It's an ending, but don't expect explanations of who the Freakangels really are, how and why they have their powers, and the world beyond Whitechapel - you won't get it.
What you get is a great, intelligent and exciting ending to a superb series that has been one triumphant book after another. Ellis and Paul Duffield have created an incredible comics series that ought to be better known and even could be a brilliant TV show. It's just a shame the series ended after 6 books, I could've read 6 more but it ends well and I can wholeheartedly recommend the entire series for fans of well written, imaginative comics with a hint of steampunk and sci-fi thrown into the mix. Freakangels rule!